Critically ill patients demonstrate large interpersonal variation in intestinal microbiota dysregulation : a pilot study
Purpose: The intestinal microbiota has emerged as a virtual organ with essential functions in human physiology. Antibiotic-induced disruption of the microbiota in critically ill patients may have a negative influence on key energy resources and immunity. We set out to characterize the fecal microbiota composition in critically ill patients both with and without sepsis and to explore the use of microbiota-derived markers for clinical outcome measurements in this setting. Methods: In this prospective observational cohort study we analyzed the fecal microbiota of 34 patients admitted to the intensive care unit. Fifteen healthy subjects served as controls. The fecal microbiota was phylogenetically characterized by 16S rRNA gene sequencing, and associations with clinical outcome parameters were evaluated. Results: A marked shift in fecal bacterial composition was seen in all septic and non-septic critically ill patients compared with controls, with extreme interindividual differences. In 13 of the 34 patients, a single bacterial genus made up >50% of the gut microbiota; in 4 patients this was even >75%. A significant decrease in bacterial diversity was observed in half of the patients. No associations were found between microbiota diversity, Firmicutes/Bacteroidetes ratio, or Gram-positive/Gram-negative ratio and outcome measurements such as complications and survival. Conclusions: We observed highly heterogeneous patterns of intestinal microbiota in both septic and non-septic critically ill patients. Nevertheless, some general patterns were observed, including disappearance of bacterial genera with important functions in host metabolism. More detailed knowledge of the short- and long-term health consequences of these major shifts in intestinal bacterial communities is needed.
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Format: | Article/Letter to editor biblioteca |
Language: | English |
Subjects: | Antibiotics, Critically ill, Gut microbiota, Intensive care unit, Sepsis, |
Online Access: | https://research.wur.nl/en/publications/critically-ill-patients-demonstrate-large-interpersonal-variation |
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dig-wur-nl-wurpubs-5099572024-10-01 Lankelma, Jacqueline M. van Vught, Lonneke A. Belzer, Clara Schultz, Marcus J. van der Poll, Tom de Vos, Willem M. Wiersinga, W.J. Article/Letter to editor Intensive Care Medicine 43 (2017) 1 ISSN: 0342-4642 Critically ill patients demonstrate large interpersonal variation in intestinal microbiota dysregulation : a pilot study 2017 Purpose: The intestinal microbiota has emerged as a virtual organ with essential functions in human physiology. Antibiotic-induced disruption of the microbiota in critically ill patients may have a negative influence on key energy resources and immunity. We set out to characterize the fecal microbiota composition in critically ill patients both with and without sepsis and to explore the use of microbiota-derived markers for clinical outcome measurements in this setting. Methods: In this prospective observational cohort study we analyzed the fecal microbiota of 34 patients admitted to the intensive care unit. Fifteen healthy subjects served as controls. The fecal microbiota was phylogenetically characterized by 16S rRNA gene sequencing, and associations with clinical outcome parameters were evaluated. Results: A marked shift in fecal bacterial composition was seen in all septic and non-septic critically ill patients compared with controls, with extreme interindividual differences. In 13 of the 34 patients, a single bacterial genus made up >50% of the gut microbiota; in 4 patients this was even >75%. A significant decrease in bacterial diversity was observed in half of the patients. No associations were found between microbiota diversity, Firmicutes/Bacteroidetes ratio, or Gram-positive/Gram-negative ratio and outcome measurements such as complications and survival. Conclusions: We observed highly heterogeneous patterns of intestinal microbiota in both septic and non-septic critically ill patients. Nevertheless, some general patterns were observed, including disappearance of bacterial genera with important functions in host metabolism. More detailed knowledge of the short- and long-term health consequences of these major shifts in intestinal bacterial communities is needed. en application/pdf https://research.wur.nl/en/publications/critically-ill-patients-demonstrate-large-interpersonal-variation 10.1007/s00134-016-4613-z https://edepot.wur.nl/399474 Antibiotics Critically ill Gut microbiota Intensive care unit Sepsis https://creativecommons.org/licenses/by-nc/4.0/ Wageningen University & Research |
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Antibiotics Critically ill Gut microbiota Intensive care unit Sepsis Antibiotics Critically ill Gut microbiota Intensive care unit Sepsis |
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Antibiotics Critically ill Gut microbiota Intensive care unit Sepsis Antibiotics Critically ill Gut microbiota Intensive care unit Sepsis Lankelma, Jacqueline M. van Vught, Lonneke A. Belzer, Clara Schultz, Marcus J. van der Poll, Tom de Vos, Willem M. Wiersinga, W.J. Critically ill patients demonstrate large interpersonal variation in intestinal microbiota dysregulation : a pilot study |
description |
Purpose: The intestinal microbiota has emerged as a virtual organ with essential functions in human physiology. Antibiotic-induced disruption of the microbiota in critically ill patients may have a negative influence on key energy resources and immunity. We set out to characterize the fecal microbiota composition in critically ill patients both with and without sepsis and to explore the use of microbiota-derived markers for clinical outcome measurements in this setting. Methods: In this prospective observational cohort study we analyzed the fecal microbiota of 34 patients admitted to the intensive care unit. Fifteen healthy subjects served as controls. The fecal microbiota was phylogenetically characterized by 16S rRNA gene sequencing, and associations with clinical outcome parameters were evaluated. Results: A marked shift in fecal bacterial composition was seen in all septic and non-septic critically ill patients compared with controls, with extreme interindividual differences. In 13 of the 34 patients, a single bacterial genus made up >50% of the gut microbiota; in 4 patients this was even >75%. A significant decrease in bacterial diversity was observed in half of the patients. No associations were found between microbiota diversity, Firmicutes/Bacteroidetes ratio, or Gram-positive/Gram-negative ratio and outcome measurements such as complications and survival. Conclusions: We observed highly heterogeneous patterns of intestinal microbiota in both septic and non-septic critically ill patients. Nevertheless, some general patterns were observed, including disappearance of bacterial genera with important functions in host metabolism. More detailed knowledge of the short- and long-term health consequences of these major shifts in intestinal bacterial communities is needed. |
format |
Article/Letter to editor |
topic_facet |
Antibiotics Critically ill Gut microbiota Intensive care unit Sepsis |
author |
Lankelma, Jacqueline M. van Vught, Lonneke A. Belzer, Clara Schultz, Marcus J. van der Poll, Tom de Vos, Willem M. Wiersinga, W.J. |
author_facet |
Lankelma, Jacqueline M. van Vught, Lonneke A. Belzer, Clara Schultz, Marcus J. van der Poll, Tom de Vos, Willem M. Wiersinga, W.J. |
author_sort |
Lankelma, Jacqueline M. |
title |
Critically ill patients demonstrate large interpersonal variation in intestinal microbiota dysregulation : a pilot study |
title_short |
Critically ill patients demonstrate large interpersonal variation in intestinal microbiota dysregulation : a pilot study |
title_full |
Critically ill patients demonstrate large interpersonal variation in intestinal microbiota dysregulation : a pilot study |
title_fullStr |
Critically ill patients demonstrate large interpersonal variation in intestinal microbiota dysregulation : a pilot study |
title_full_unstemmed |
Critically ill patients demonstrate large interpersonal variation in intestinal microbiota dysregulation : a pilot study |
title_sort |
critically ill patients demonstrate large interpersonal variation in intestinal microbiota dysregulation : a pilot study |
url |
https://research.wur.nl/en/publications/critically-ill-patients-demonstrate-large-interpersonal-variation |
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